Dumping apparatus



A. LOVELL.

DUMPING APPARATUS.

APPLICATION FILED OCT. 28,1919.

1 ,360, 1 24;, Patented Nov. 23, 1920.

2 SHEETS-SHEET1- J4 F'l l:. J0 J2 4a 3/. s 4/ 67 6 J 1/0 o J l O A. LOVELL.

DUMPING APPARATUS. APPLICATION FILED OCT. 28, 1919.

1 ,360, 124, Patented Nov. 23, 1920.

2 SHEETSSHEET 2- UNITED STATES PATENT OFFICE.

ARTHUR LOVELL, or noornn r, OKLAHOMA.

DUMPING APPARATUS.

Specification of Letters Patent. Patented N 23, 192K) Application filed fictoosr fi 1919. Serial No. 333,994.

paratus, of which the following: is a specifi cation. i i

This invention relates-. to lumping appaw ratus used in connect ill with electric train terns for handling he dirt from mines; and it cons '1 novel construction and combination oi theparts hereinafter fully describerl and claimed.

in the drawings. Figure l is a side view of the dumping a i Fig. 2 is a plan view oi the some. Fig. 3 is an end view oi one of the truchsshowing the latch mechanism, w th the truck bottom raised. The dotted lines show the position of the parts when drunping. l at a side view ofthetruck showing; the position of the parts when dumping. Fig. 3 is a detail side view oi? the switch mechanism for operating the electric light signal.

A. supporting frame 2 is provided. at the dump where the material is unloaded, and has raised track 3 formed on a circular arc. and a lower track l: also formed on a circular arc concentric with the track 3 but arranged at a grcatel distance from itscentor and at a lower level. i i

A. flat turntable 6 provided and is mounted on wheels '7 which run on the up-j per track 3. Bi downwardly inclined railroad track section 8 is secured at its upper end to one side of the turntable, and has Wheels 9 at its lowerend which run on the lower track The supporting frame is of any approved construction, and the inclined railroad track is termed oi? longitudinal members suitably braced together and hav A truck 12 of any approvedconstruction is arranged to run on the tracks 10 and the track section 8 which is turned around with the turntable so as to connect with the va-- rious tracks 10. The truck 12 has a bottom 1% connected. to it by hinges 15 at one side so that it will open downwardly. A. bar 16 is journaled in bearings 1.7 on the other side of the truck from the hinges, and has arms 18 at its BIKE and a catch 19 at its middle part. The arms are pivotally connected with the ends ofthe truck bottom by rods 2-0 and pins21.

A; latch-bar 22 slidable longitudinallyin guides secured to one side or the truck, and itlias a hook ehaped latch 241.- at one end for engaging with the catch 19. When the latch isslid longitudinally out oi? engagement with thecatch 19 the weight of the bottom and the material in the truck causes thcmaiterial to be dumped automatically. A dog 25 is pivoted. to the truclcby a pin 26 and operates to retract the latch-bar when moved in one direction. This dog turns without operating the latch-bar when moved in the opposite direction. A trip 27 for operatingthe dog 25 is carried by the track section 8, and is pivoted to the track sect-ion bya pin28 so that it is stationary when the dog strikes it in. a direction adapted to retract the latch bar and dump the material.

A winding mechanism 30 is mounted on the turntable and is provided with a winding cable 31 which is securedto the truck.

. The winding mechanism is of any approved construction, and it is driven by an electric motor 32 of any suitable kind, alsomounted on the turntable, and preferably stopped and. started by devices operated from the.

mine shafts at points remote from the turntable. g i

A signal light 3lis provided and is referably supported above the turntable. his signal is anlelectric light, and it is provided with a switch 35 of any approved sort for controlling it. A switch-bar 86 is slidable longitudinally in guides 37 on the track section 8, and is operated by a dog 38 which is pivoted to the traclrsection 8"by a pin 39. When one of the truck wheels strikes the dog 38, as the truck is hauled up the track section, it turns the dog 38 and closes the switch so as to turn on the lamp. When the truck moves down the track sectionthe dog 38 turns 011 its pin without operating the switch-bar. The switch-bar 36 has a projection 39 on its upper end portion,and when a truck wheel strikes this projection it slides the switch-bar longitudinally and opens the switch.

A chute 40 is secured to the track section 8, and the signal light is arranged so that it is turned on by the switch-bar when the truck bottom is lowered and the material is dumped down the chute 40. The upper. end portion of the chute 40 is secured to the lower end portion of the inclined track section 8, and the chute is arranged radially ofthe pivot of the turntable and is inclined lownwardly in the reverse direction to the track section 8 so that it may discharge the material under the central portion of the frame toward the axis of the turntable. When all the material is dumped, the truck is drawn farther up the track section 8 by the electric winding engine so as to close the bottom 14 and turn elf the light. The truck bottom-14 iselosed by means of'an inclined guide 41 arranged at the upper part of the track section 8 and secured to the turntable, and set at a steeper angle than the track section 8.

- When the truck bottom has been raised a. projection 42 on the higher end of the latch-bar-22 strikes a buffer 3 on the track or turntable, and the latch-bar is thereby pushedlongitudinally so that the latch 24 reengages with the catch 19. e

The loaded truck is drawn from its mine shaft by the winding engine, and is dumped automatically when it arrives at the proper point on the track section 8, the signal light showing to the operator at the mine shaft ator at the dump is not required, as the turntable can be-turned by unskilled labor. The winding cable is freed from the wear of I being passed around guide pulleys which are generally required in apparatus for dumping mine trucks as ordinarily constructed.

- What I claim'is:

v 1. A supporting frame provided with concentric tracks arranged at different levels, a turntable for supporting a winding mechanism for operating a truck, said turn table being mounted on the upper track and provided with an inclined radial t 'ack section the lower end portion of which is supported by the lower track, and a plurality of stationary tracks arranged radially and adapted to connect with the said track section.

2. A supporting frame provided with con centric curved tracks aranged at dillerent levels, a turntable mounted on the upper track and provided with a downwardly iticlined track section the lower end pcrlieu of which is supported by the lower track, a plurality of stationary railroad tracks arranged radially of the turntable and adapt ed to connect with the said track section, a winding device mounted on the turntable and provided with a winding cable, and a truck operated by the cable and running on the said tracks and t'ac section.

3. A supporting frame provided with an upper curved track and a lower curved track arranged concentric 7? the rapper ire-w lmi at a greater distance from its center or pivot and at a lower level a turntable for supporting a winding mechanism for operating a truck, said turntable being pivoted to the frame and. provided with an inclined radial track section, wheels which run on the said curved tracks and support the said turntable and inclined track section respectively, and a plurality of stationary tracks arranged radially and adapted to connect with the said track section.

a. A supporting frame provided with concentric tracks arranged at different levels, a turntable for supporting a winding mechanism for operating a truck, said turntable being mounted on the upper track and provided with an inclined radial track section the lower end portion of which is supported by the lower track, a radial chute inclined in the opposite direction to the said track section and having its upper end portion secured to the lower end portion of the said track section, and a plurality of stationary tracks arranged radially and adapted to con nect with the said track section.

In testimony whereof I have afiixed my signature.

ARTHUR LOVELL. 

